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<html>
	<head>
		<meta charset="utf-8">
		<title>历史记录记忆</title>
	</head>
	<body>
		<p>历史记录记忆</p>
		<select class="abc a2">
			<option value="_1">1</option>
			<option value="_2">2</option>
			<option value="_3">3</option>
		</select>

		<input type="text" value="" name="test" class="abc a1" />
		<input type="text" value="" name="test" class="abc a3" />
	</body>
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	<script src="fn.historyinfo.js"></script>
	<script>
		$(".abc").historyInfo({
			field: "",
			step: 3,
			done: function(oldV, newV, _this) {
				console.log(oldV);
				console.log(newV);
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			}
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	</script>
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